Abstract
Background: The unexplained disagreement in the dependence of spectroscopic factors on the binding energy obtained by nucleon knockout using different targets is still a puzzle that needs to be addressed.
Purpose: To find an explanation of this riddle through exclusive measurements using different targets.
Method: The exclusive measurements were performed by using a beam with an energy of 500 MeV/u incident on and targets. Through the standard theoretical approach, were derived from the analysis of the experimental data on proton ejection from the proton halo in as well as from its core .
Result: For the target, proton ejection from the proton halo gave about 37% smaller than for the target. But when protons are ejected from the core of , are identical within statistical uncertainties.
Conclusion: An explanation for the difference in could be the removal of both halo protons, a more important reaction pathway for the target. The values obtained by analyzing the proton ejection from the core indicate that it is not affected by the interaction with the halo protons.
1 More- Received 22 January 2024
- Accepted 28 March 2024
DOI:https://doi.org/10.1103/PhysRevC.109.054602
Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by Bibsam.
Published by the American Physical Society